{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:26.550271", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2018-Oct-30_to_2018-Nov-03_96.5_-76.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2018100002918}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "October 30 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 03 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 133957.54816873575}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -76.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 96.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "96.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 87.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 100.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -78.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -72.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[87.35, -75.75], [87.25, -75.5], [87.47, -74.97], [88.0, -74.75], [88.25, -74.85], [88.5, -74.75], [88.75, -74.85], [88.82, -74.82], [88.85, -74.75], [88.75, -74.5], [88.97, -73.97], [89.5, -73.75], [90.03, -73.97], [90.18, -74.32], [90.25, -74.35], [90.32, -74.32], [90.47, -73.97], [90.82, -73.82], [90.85, -73.75], [90.75, -73.5], [90.97, -72.97], [91.32, -72.82], [91.47, -72.47], [92.0, -72.25], [92.25, -72.35], [92.32, -72.32], [92.47, -71.97], [93.0, -71.75], [93.25, -71.85], [93.5, -71.75], [94.03, -71.97], [94.18, -72.32], [94.25, -72.35], [94.5, -72.25], [94.75, -72.35], [95.0, -72.25], [95.25, -72.35], [95.5, -72.25], [96.03, -72.47], [96.18, -72.82], [96.53, -72.97], [96.75, -73.5], [96.63, -73.8], [96.75, -73.85], [97.0, -73.75], [97.25, -73.85], [97.5, -73.75], [97.75, -73.85], [98.0, -73.75], [98.25, -73.85], [98.5, -73.75], [99.03, -73.97], [99.18, -74.32], [99.25, -74.35], [99.5, -74.25], [99.75, -74.35], [100.0, -74.25], [100.53, -74.47], [100.75, -75.0], [100.65, -75.25], [100.75, -75.5], [100.65, -75.75], [100.75, -76.0], [100.53, -76.53], [100.0, -76.75], [99.75, -76.65], [99.5, -76.75], [99.25, -76.65], [99.0, -76.75], [98.75, -76.65], [98.68, -76.68], [98.53, -77.03], [98.0, -77.25], [97.75, -77.15], [97.5, -77.25], [97.25, -77.15], [97.0, -77.25], [96.75, -77.15], [96.68, -77.18], [96.53, -77.53], [96.0, -77.75], [95.75, -77.65], [95.68, -77.68], [95.54, -78.0], [95.75, -78.5], [95.53, -79.03], [95.0, -79.25], [94.75, -79.15], [94.5, -79.25], [94.25, -79.15], [94.0, -79.25], [93.75, -79.15], [93.5, -79.25], [93.25, -79.15], [93.0, -79.25], [92.75, -79.15], [92.5, -79.25], [92.25, -79.15], [92.0, -79.25], [91.75, -79.15], [91.5, -79.25], [91.25, -79.15], [91.0, -79.25], [90.75, -79.15], [90.5, -79.25], [90.25, -79.15], [90.0, -79.25], [89.75, -79.15], [89.5, -79.25], [89.25, -79.15], [89.0, -79.25], [88.75, -79.15], [88.5, -79.25], [87.97, -79.03], [87.75, -78.5], [87.85, -78.25], [87.75, -78.0], [87.96, -77.5], [87.82, -77.18], [87.47, -77.03], [87.25, -76.5], [87.35, -76.25], [87.25, -76.0], [87.35, -75.75]], [[92.88, -74.3], [92.82, -74.18], [92.75, -74.15], [92.68, -74.18], [92.63, -74.3], [92.75, -74.35], [92.88, -74.3]], [[93.82, -74.82], [93.88, -74.7], [93.75, -74.65], [93.63, -74.7], [93.68, -74.82], [93.75, -74.85], [93.82, -74.82]]]]}, "2018-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[87.35, -75.75], [87.25, -75.5], [87.47, -74.97], [88.0, -74.75], [88.25, -74.85], [88.5, -74.75], [88.75, -74.85], [88.82, -74.82], [88.85, -74.75], [88.75, -74.5], [88.97, -73.97], [89.5, -73.75], [90.03, -73.97], [90.18, -74.32], [90.25, -74.35], [90.32, -74.32], [90.47, -73.97], [90.82, -73.82], [90.85, -73.75], [90.75, -73.5], [90.97, -72.97], [91.32, -72.82], [91.47, -72.47], [92.0, -72.25], [92.25, -72.35], [92.32, -72.32], [92.47, -71.97], [93.0, -71.75], [93.25, -71.85], [93.5, -71.75], [94.03, -71.97], [94.18, -72.32], [94.25, -72.35], [94.5, -72.25], [94.75, -72.35], [95.0, -72.25], [95.25, -72.35], [95.5, -72.25], [96.03, -72.47], [96.18, -72.82], [96.53, -72.97], [96.75, -73.5], [96.63, -73.8], [96.75, -73.85], [97.0, -73.75], [97.25, -73.85], [97.5, -73.75], [97.75, -73.85], [98.0, -73.75], [98.25, -73.85], [98.5, -73.75], [99.03, -73.97], [99.18, -74.32], [99.25, -74.35], [99.5, -74.25], [99.75, -74.35], [100.0, -74.25], [100.53, -74.47], [100.75, -75.0], [100.65, -75.25], [100.75, -75.5], [100.65, -75.75], [100.75, -76.0], [100.53, -76.53], [100.0, -76.75], [99.75, -76.65], [99.5, -76.75], [99.25, -76.65], [99.0, -76.75], [98.75, -76.65], [98.68, -76.68], [98.53, -77.03], [98.0, -77.25], [97.75, -77.15], [97.5, -77.25], [97.25, -77.15], [97.18, -77.18], [97.03, -77.53], [96.5, -77.75], [96.25, -77.65], [96.18, -77.68], [96.03, -78.03], [95.68, -78.18], [95.65, -78.25], [95.75, -78.5], [95.53, -79.03], [95.0, -79.25], [94.75, -79.15], [94.5, -79.25], [94.25, -79.15], [94.0, -79.25], [93.75, -79.15], [93.5, -79.25], [93.25, -79.15], [93.0, -79.25], [92.75, -79.15], [92.5, -79.25], [92.25, -79.15], [92.0, -79.25], [91.75, -79.15], [91.5, -79.25], [91.25, -79.15], [91.0, -79.25], [90.75, -79.15], [90.5, -79.25], [90.25, -79.15], [90.0, -79.25], [89.75, -79.15], [89.5, -79.25], [89.25, -79.15], [89.0, -79.25], [88.75, -79.15], [88.5, -79.25], [87.97, -79.03], [87.75, -78.5], [87.85, -78.25], [87.75, -78.0], [87.96, -77.5], [87.82, -77.18], [87.47, -77.03], [87.25, -76.5], [87.35, -76.25], [87.25, -76.0], [87.35, -75.75]], [[92.88, -74.3], [92.82, -74.18], [92.75, -74.15], [92.68, -74.18], [92.63, -74.3], [92.75, -74.35], [92.88, -74.3]], [[93.82, -74.82], [93.88, -74.7], [93.75, -74.65], [93.63, -74.7], [93.68, -74.82], [93.75, -74.85], [93.82, -74.82]]]]}, "2018-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[87.35, -75.75], [87.25, -75.5], [87.47, -74.97], [88.0, -74.75], [88.25, -74.85], [88.5, -74.75], [88.75, -74.85], [88.82, -74.82], [88.85, -74.75], [88.75, -74.5], [88.97, -73.97], [89.5, -73.75], [90.03, -73.97], [90.18, -74.32], [90.25, -74.35], [90.32, -74.32], [90.47, -73.97], [90.82, -73.82], [90.85, -73.75], [90.75, -73.5], [90.97, -72.97], [91.32, -72.82], [91.47, -72.47], [92.0, -72.25], [92.25, -72.35], [92.32, -72.32], [92.47, -71.97], [93.0, -71.75], [93.25, -71.85], [93.5, -71.75], [94.03, -71.97], [94.18, -72.32], [94.25, -72.35], [94.5, -72.25], [94.75, -72.35], [95.0, -72.25], [95.25, -72.35], [95.5, -72.25], [96.03, -72.47], [96.18, -72.82], [96.53, -72.97], [96.75, -73.5], [96.63, -73.8], [96.75, -73.85], [97.0, -73.75], [97.25, -73.85], [97.5, -73.75], [97.75, -73.85], [98.0, -73.75], [98.25, -73.85], [98.5, -73.75], [99.03, -73.97], [99.18, -74.32], [99.25, -74.35], [99.5, -74.25], [99.75, -74.35], [100.0, -74.25], [100.53, -74.47], [100.75, -75.0], [100.65, -75.25], [100.75, -75.5], [100.65, -75.75], [100.75, -76.0], [100.53, -76.53], [100.0, -76.75], [99.75, -76.65], [99.5, -76.75], [99.25, -76.65], [99.0, -76.75], [98.75, -76.65], [98.68, -76.68], [98.53, -77.03], [98.0, -77.25], [97.75, -77.15], [97.5, -77.25], [97.25, -77.15], [97.18, -77.18], [97.03, -77.53], [96.5, -77.75], [96.25, -77.65], [96.18, -77.68], [96.03, -78.03], [95.68, -78.18], [95.65, -78.25], [95.75, -78.5], [95.53, -79.03], [95.0, -79.25], [94.75, -79.15], [94.5, -79.25], [94.25, -79.15], [94.0, -79.25], [93.75, -79.15], [93.5, -79.25], [93.25, -79.15], [93.0, -79.25], [92.75, -79.15], [92.5, -79.25], [92.25, -79.15], [92.0, -79.25], [91.75, -79.15], [91.5, -79.25], [91.25, -79.15], [91.0, -79.25], [90.75, -79.15], [90.5, -79.25], [90.25, -79.15], [90.0, -79.25], [89.75, -79.15], [89.5, -79.25], [89.25, -79.15], [89.0, -79.25], [88.75, -79.15], [88.5, -79.25], [87.97, -79.03], [87.75, -78.5], [87.85, -78.25], [87.75, -78.0], [87.96, -77.5], [87.82, -77.18], [87.47, -77.03], [87.25, -76.5], [87.35, -76.25], [87.25, -76.0], [87.35, -75.75]], [[92.88, -74.3], [92.82, -74.18], [92.75, -74.15], [92.68, -74.18], [92.63, -74.3], [92.75, -74.35], [92.88, -74.3]], [[93.82, -74.82], [93.88, -74.7], [93.75, -74.65], [93.63, -74.7], [93.68, -74.82], [93.75, -74.85], [93.82, -74.82]]]]}, "2018-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.97, -76.97], [94.32, -76.82], [94.47, -76.47], [94.82, -76.32], [94.97, -75.97], [95.5, -75.75], [95.75, -75.85], [96.0, -75.75], [96.25, -75.85], [96.5, -75.75], [97.03, -75.97], [97.25, -76.5], [97.15, -76.75], [97.25, -77.0], [97.03, -77.53], [96.5, -77.75], [96.25, -77.65], [96.18, -77.68], [96.03, -78.03], [95.68, -78.18], [95.53, -78.53], [95.0, -78.75], [94.75, -78.65], [94.5, -78.75], [93.97, -78.53], [93.75, -78.0], [93.85, -77.75], [93.75, -77.5], [93.97, -76.97]]]]}, "2018-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[96.5, -75.75], [97.03, -75.97], [97.25, -76.5], [97.03, -77.03], [96.5, -77.25], [95.97, -77.03], [95.75, -76.5], [95.97, -75.97], [96.5, -75.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.578296928851955}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.65267198096424}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-40.703652141097024, -38.72255620433074, -40.68829412604984, -42.80389292660507, -42.358584945069225]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-35.67245258416301, -35.297237155043746, -36.6646690561405, -42.25422379026364, -42.358584945069225]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.440541789796817, 9.05766773284849, 6.598540957266661, 5.72449111137865, 5.18223517902203]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.493178198120262, 10.578296928851955, 7.542750551835269, 6.213003866604026, 5.18223517902203]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7476650479417704, 2.128436787250701, 1.565853481493509, 1.4010989557640736, 1.3193695421625313]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0287792632578348, 2.482663761701182, 1.776661993251677, 1.5160914369354104, 1.3193695421625313]}}